Theta meaning

thātə, thē-
(mathematics) The measure of an angle.
noun
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The eighth letter of the Greek alphabet.
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The eighth letter of the Greek alphabet (Θ, ϑ, θ)
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Measures the change in the premium of an option and compares it to a one-day change in time-to-maturity. The longer an option’s time to expiration, the more valuable an option is. High theta options are favored by option sellers because options have a high rate of time decay.
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The name for the eighth letter οf the Modern Greek alphabet, ninth in Old Greek.
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Origin of theta

  • Greek thēta of Phoenician origin Hebrew ṭêt teth

    From American Heritage Dictionary of the English Language, 5th Edition

  • From the Ancient Greek θῆτα (thēta).

    From Wiktionary